Refrigerator.



Patented July I8, |899.

mi. 629,143.A

K. WILT.

REFBIGERTR.

(Appuminn mm mc. 27, 189e.)

(lo Model.)

3 Sheets-Sheet I.

Zzve mo 7 we Mms nefs cc, vaamu'rgo, WASHINGTON D c No. 629,143. y Patented :my 18,1399.

K. wlLT.

nEFms/Esuon.

' (Application led Dec. 7l 1898.) (lio Modem' 3 Sheets-Sheet 2.

Il@ 11H l" lull" n 131 l No. 629,143. Patented-my ls, |899. K. wlLT.

BEFRGERATOR.

(Application tiled Dec. 27, 1898.)

3r Sheets-Sheet 3.

'ma Nnnms PETER: oo.. mar-uwe. wus-unserem. n. c,

UNITED 'STATES PrrrEN'rv OFFICE.

, KASPER WILT, OF CHICAGO, ILLINOIS.

REFRIGERATOR.

SPECIFIGA'IIN forming part of Ilet'ters Patent No. 629,143,6.ated July 18, 1899.

Application filed December 27, 18'38.' Serial No. 700,317. (No model.) f

' To all whom t may concern:

Be it known that L'KASPER WILT, a citizen -of the United States, residing at Chicago, in

the county of Cook and State of Illinois, have invented certain new and useful Improvements in Refrigerators; and l do hereby de- 'clare the following to be a full, clear, and exact description of' the invention, such as will enable others skilled in the art to which it appertains to make and use the same. My invention relates to a novel construction in a refrigerator, the object being to provide a device of this character in which low temperatureis maintained bythe use of cooling mediums other than ice; and it consists in the features of construction and combinations of parts hereinafter fully described and claimed.

In the accompanying drawings, illustrating my invention, Figure 1 is a top plan view of a refrigerator constructed in accordance with :my invention, the outer covering being removed and the innercoveringpartially broken away. Fig. V2 is a sectional view of same on' the line 2 2 ofFig. 1. Fig. 3 is a sectional view on the line 8g3 of Fig. 1. Fig. 4isasectional view onl the line 4 4 of Fig.' 3. Fig. 5

is a sectional view on the line of Figs. l and 3. Fig. 6 is a sectional view on the line 6 6 of Figs. 1 and 8. Fig.' 7 is a sectional view on the line 7 7 of Fig. 4.

My device consists of a casing A, having double walls Band C, provided with a space between them. Said casing is open at one side and forms a receptacle D to receive the matter to be kept cool.' lThe bottom EconV sists of a` single plate, while the three side walls are provided with aspace between them The inner walls C do not eXtendas-high asv the walls D, and thereby .a large spacefF is provided in the upper end of 4said casing,

which is closed by means of a removablev cover G. In said space F, I provide a receptacle l, adapted to receive a' vessel 2, containing a heat-absorbing chemical composition.

"Said receptacle 1 is lined internally with a layer 3 of non-conducting material, the object of which is to preventl too rapid absorption of heat. Said receptacle 1 is adapted to ripe 6; At an adjacent side said receptacle 5 connects with another pipe 7, also' entering said space D at its upper end, but at a point distant from the point of communication of pipe 6 therewith. An electric fan .-'motor 8 'is mounted in said receptacle 5 and is adapted to draw air through said pipe@ and discharge it into pipe 7, thereby creating a rapid circulation in said space D. A piped passing through said `space F connects chamber -D with the outer air for purposes of ventilation. The space between the double walls B and C is connected yat the lower rear end with a waterfsupply pipe lOgeXtending some distance up into said` space, andV likewise said lspace is provided with an opening 1l, through which the Water can be drained oif. Water is fed to said space' continuously and remains norentering the space D at'its upper end.

mally level with the upper end of an overflowpipe 12, the lower end of whichprojects fromthe bottom of said space between said walls B 'and C. Said casing A consists, preferably,I

of metal and is adapted to be mounted 'in a g wooden casing'l, adapted to stiifen and support said metallic casing. The latter is secured in said casing 13 by means of bolts 14 passing through the sleeves 15 and 16, mount/- ed upon the inner wall C and extending to a point adjacent the outer wall B and the cover G. `1 Said sleeves `15 and 16 are surrounded by rubber sleeves 17 of greater length, so that when the bolt-s 14 passing through said' sleeves and corresponding openings in the walls are drawn tight said rubber sleeves are com-v pressed against said walls at their/ends, thus .forming water-tight joints around.v said openings.' Bracing-plates 18 are preferably slippedl over the inner ends of the bolts and forced against the inner faces of the wall C, thereby reinforcing said wall. The cover of said outer casing is provided with anfopeninglQ, covered with gauze, which is adapted to register with said ventilating-pipe 9, said gauze serving to prevent entrance of undesirable matter into the chamber D. A door 2O is also provided in said outer casing and is adapted to control the open endof the chamber D.

The operationV of my device is very simple. The circulation 'of cold water through the spaces between the walls and in the space F obviously serves to cool theair contained in ICO chamber D, and such cooling is further promoted by the circulation of the air caused by the operation of said fan. The heat-absorbing substance contained in said receptacle l also serves to absorb heat from both the Water and air contained in the device, and thus producel a very low temperature.

I claim as my invention- VIn a device of the kind specified, a cold-air chamber, surrounded on three sides and top by a Water-chamber, a Water-inlet to said Water-chamber, an overiioW-pipe, a Water outlet pipe, a receptacle in the upper part of said water-chamber adapted to contain a heatabsorbing substance, a lining of non-conducting material for said receptacle, a chamber containing devices for agitating and causing circulation of air, pipes connecting said chamber with said eold-air chamber, a Ventilatinging said bolts tight, whereby Water-tight joints are formed, substantially'as described. In testimony whereof I affix my signature in presence of two witnesses.

KASPER WILT. 'Vitn esses:

RUDOLPH WM. Lo'rz, E. J. BOILEAU. 

